From f0bb278dcfc3bfe9c61c9436d4eeef75a15ba96a Mon Sep 17 00:00:00 2001
From: Alexander Stein <alexander.stein@ew.tq-group.com>
Date: Tue, 14 Jun 2022 11:58:35 +0200
Subject: drm/bridge: ti-sn65dsi83: Allow GPIO operations to sleep
Git-commit: 805245071240ae480503af29c7e31d2d7ff5c7f8
Patch-mainline: v6.0-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849

There is no need to require non-sleeping GPIO access. Silence the
WARN_ON() if GPIO is using e.g. I2C expanders.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Signed-off-by: Robert Foss <robert.foss@linaro.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220614095835.1398708-2-alexander.stein@ew.tq-group.com
Reviewed-by: Robert Foss <robert.foss@linaro.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 drivers/gpu/drm/bridge/ti-sn65dsi83.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ti-sn65dsi83.c b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
index a306150a8027..dc26640e7d9b 100644
--- a/drivers/gpu/drm/bridge/ti-sn65dsi83.c
+++ b/drivers/gpu/drm/bridge/ti-sn65dsi83.c
@@ -344,7 +344,7 @@ static void sn65dsi83_atomic_enable(struct drm_bridge *bridge,
 	}
 
 	/* Deassert reset */
-	gpiod_set_value(ctx->enable_gpio, 1);
+	gpiod_set_value_cansleep(ctx->enable_gpio, 1);
 	usleep_range(1000, 1100);
 
 	/* Get the LVDS format from the bridge state. */
@@ -500,7 +500,7 @@ static void sn65dsi83_atomic_disable(struct drm_bridge *bridge,
 	int ret;
 
 	/* Put the chip in reset, pull EN line low, and assure 10ms reset low timing. */
-	gpiod_set_value(ctx->enable_gpio, 0);
+	gpiod_set_value_cansleep(ctx->enable_gpio, 0);
 	usleep_range(10000, 11000);
 
 	ret = regulator_disable(ctx->vcc);
-- 
2.38.1